# import os
#
# for root_dir,file_path,file_list in os.walk('/home/m/pdf_file'):
#     for file in file_list:
#         print(os.path.join(root_dir,file))
#     print('*'*50)


import re
a='1352555500'
# b=re.match(r'(5){2}',a)
b=re.findall(r'(\d){2}',a)
print(b)